Your question is not clear. Are you asking when the modll began production or when yours was made? If the latter, you will have to provide the serial number. Even then, records may not exist.
The stevens model 56 was made from 1933-1945.There was a total production of 97,500 made.
1939
I can say that the stevens model 9478 shotgun was made during the years 1978-1985.
Stevens Model 56 Made 1933 till 1945, 97,500 made. from Gun Trader.
If we are talking about a stevens model 77 shotgun?Then these were made by stevens between 1955-1971.
Your stevens model 9478 shotgun was made during the years 1978-1985.while serial numbers were on the shotguns I do not believe that serial number records were kept as to the year of production.
Your westerfield model 30 was made by Stevens gun company.There model designation was the model 520. As far as when it was made I cannot find that info at this time,sorry.
Your westerfield model 30 was made by Stevens gun company.There model designation was the model 520. As far as when it was made I cannot find that info at this time,sorry.
The Savage 820 model is an older gun that was made long before the current accessories. No one ever made any after-market accessories for this model, it is not noted the year of manufacture.
I can say that Stevens began production of the model 94 single shot shotguns in the year 1929.and finished in the year 1945.
If you can locate a copy of the Gun Digest of that time frame,it will have the cost of the then new Stevens/Savage model 73.this model was made from 1964-1969.
A Stevens 79 20 gauge shotgun depends on the specific shotgun. This model can be produced over and over each year. Therefore, the year of the gun is based on the specific gun, not the type of gun.